Timing retard, ECU pin
It is mentioned in this thread, https://ls1tech.com/forums/nitrous-o...ulled-out.htmll ,but I can't find any additional information.
Red Pin 56 is what EFI Live uses for Custom Operating System 5.
When it is grounded, it uses alternate VE multiplier and Timing tables.



You must have EFI Live Cos 5 to use it (COS 5 is attached to 2002 OS). Not sure if HPT can exploit it or not.
Jim
When it is grounded, it uses alternate VE multiplier and Timing tables.



You must have EFI Live Cos 5 to use it (COS 5 is attached to 2002 OS). Not sure if HPT can exploit it or not.
Jim

